Suppose the mean of 20 observations is 11. If 3 is added to every number, then
find the new mean of 20 observations.
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Answered by
6
Answer:
14......................
Answered by
6
Step-by-step explanation:
mean of 20 observation=11
therefore, total sum of 20 observations=20*11
=220
now,
when 3 is added to each observation the sum =3*220
=660
new mean=660/20
=33
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